// Copyright (c) Lawrence Livermore National Security, LLC and other VisIt
// Project developers.  See the top-level LICENSE file for dates and other
// details.  No copyright assignment is required to contribute to VisIt.

#include <LEOSFileFormat.h>
#include <avtSTSDFileFormatInterface.h>
#include <VisItException.h>

class DBOptionsAttributes;

// ****************************************************************************
// Method: LEOSFileFormat::CreateInterface
//
// Purpose: 
//   Creates a file format interface that works for LEOSFileFormat files.
//
// Arguments:
//   pdb       : The PDB file object that we're using to determine the file
//               type.
//   filename  : the name of the file 
//
// Returns:    A file format interface object that lets us access the files
//             in the filename list.
//
// Programmer: Mark C. Miller 
// Creation:   February 10, 2004 
//
// ****************************************************************************

avtFileFormatInterface *
LEOSFileFormat::CreateInterface(PDBFileObject *pdb,
    const char *filename, const DBOptionsAttributes *rdopts)
{
    avtFileFormatInterface *inter = 0;

    // Create a PF3D file that uses the pdb file but does not own it.
    LEOSFileFormat *ff = new LEOSFileFormat(pdb, rdopts);

    // If the file format is an LEOS file then
    if(ff->Identify())
    {
        avtSTSDFileFormat ***ffl = new avtSTSDFileFormat**[1];
        ffl[0] = new avtSTSDFileFormat*[1];
        ffl[0][0] = new LEOSFileFormat(filename, rdopts);

        //
        // Try to create a file format interface compatible with the LEOS 
        // file format.
        //
        inter = new avtSTSDFileFormatInterface(ffl, 1, 1);

        //
        // Since at this point, we successfully created a file format interface, we
        // can let the first file format keep the PDB file object.
        //
        ff->SetOwnsPDBFile(true);
    }
    else
        delete ff;

    return inter;
}

// ****************************************************************************
// Method: LEOSFileFormat::LEOSFileFormat
//
// Purpose: 
//   Constructor for the LEOSFileFormat class.
//
// Arguments:
//   filename : The name of the file for which we'll access data.
//
// Programmer: Brad Whitlock
// Creation:   Mon Oct 13 15:06:34 PST 2003
//
// Modifications:
//   
// ****************************************************************************

LEOSFileFormat::LEOSFileFormat(const char *filename,
    const DBOptionsAttributes *rdopts) : 
    avtSTSDFileFormat(filename), reader(filename, rdopts)
{
}

// ****************************************************************************
// Method: LEOSFileFormat::LEOSFileFormat
//
// Purpose: 
//   Constructor for the LEOSFileFormat class.
//
// Arguments:
//   p : The PDB file object that we'll use to access data.
//
// Programmer: Brad Whitlock
// Creation:   Mon Oct 13 15:06:34 PST 2003
//
// Modifications:
//   
// ****************************************************************************

LEOSFileFormat::LEOSFileFormat(PDBFileObject *p,
    const DBOptionsAttributes *rdopts) :
    avtSTSDFileFormat(p->GetName().c_str()), reader(p, rdopts)
{
}

// ****************************************************************************
// Method: LEOSFileFormat::~LEOSFileFormat
//
// Purpose: 
//   Destructor for the LEOSFileFormat class.
//
// Programmer: Brad Whitlock
// Creation:   Mon Oct 13 15:07:47 PST 2003
//
// Modifications:
//   
// ****************************************************************************

LEOSFileFormat::~LEOSFileFormat()
{
}

//
// Mimic PDBReader interface.
//
bool
LEOSFileFormat::Identify()
{
    return reader.Identify();
}

void
LEOSFileFormat::SetOwnsPDBFile(bool val)
{
    reader.SetOwnsPDBFile(val);
}

//
// Methods overrides for an STSD file format.
//

const char *
LEOSFileFormat::GetType()
{
    return "LEOS File Format";
}

void
LEOSFileFormat::PopulateDatabaseMetaData(avtDatabaseMetaData *md)
{
    reader.PopulateDatabaseMetaData(md);
}

int
LEOSFileFormat::GetCycle(void)
{
    return 0;
}

double
LEOSFileFormat::GetTime(void)
{
    return 0;
}

vtkDataSet *
LEOSFileFormat::GetMesh(const char *var)
{
    return reader.GetMesh(0, var);
}

vtkDataArray *
LEOSFileFormat::GetVar(const char *var)
{
    return reader.GetVar(0, var);
}
